Wearable Speaker Module Power Transmission Overlap
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Solution Overview
Problem
Wearable electronic devices face noise interference from magnetic fields generated by nearby power lines, affecting speaker performance due to the close proximity of power lines and speaker components.
Innovation Solution
A wearable electronic device design where at least a portion of the power transmission structure overlaps the central area of the speaker's coil, reducing the magnetic field imbalance and subsequent noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the power line and speaker are disposed near to each other to save space, then the device can be miniaturized, but noise is introduced to the speaker due to magnetic field interference
Solution Approach 1:
The patent positions the power transmission structure to overlap the central area of the speaker coil, converting the harmful magnetic field interference into a beneficial balancing effect. The magnetic field from the power line counteracts the imbalance caused by the coil's winding structure, reducing overall interference noise while maintaining compact device dimensions
2Object-affected harmful factors
If the power transmission structure is positioned away from the speaker coil to reduce interference, then magnetic field imbalance is reduced, but the device complexity increases due to space constraints
Solution Approach 1:
The patent employs asymmetric positioning of the power transmission structure, deliberately placing it to overlap the central area of the speaker coil rather than maintaining symmetric or distant positioning. This asymmetric arrangement creates a specific magnetic field distribution that balances the coil's inherent asymmetry, reducing interference without requiring complex spatial planning
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively minimizes noise generated by electromagnetic interference, enhancing the speaker's performance and overall user experience in wearable electronic devices.
Implementation Method 1
a speaker module disposed in the housing and including a conductive plate and a coil surrounding the plate
Implementation Method 2
noise may be introduced to the speaker due to a magnetic field generated by the nearby power line
Data Source
AI summary
A wearable electronic device is disclosed herein. The device includes a housing, a light output module disposed in the housing and configured to output an image, a speaker module disposed in the housing, the speaker module including a conductive plate and a coil surrounding the plate, a battery disposed in the housing, and a power transmission structure disposed in the housing, and configured to transmit power from the battery to the light output module, wherein at least a portion of the power transmission structure is disposed above the plate.